Messages in this thread | | | Date | Wed, 17 Aug 2022 03:44:56 +0800 | From | kernel test robot <> | Subject | Re: [PATCH 2/2 v3] regmap: mmio: Support accelerared noinc operations |
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Hi Linus,
I love your patch! Yet something to improve:
[auto build test ERROR on v6.0-rc1] [also build test ERROR on linus/master] [cannot apply to broonie-regmap/for-next next-20220816] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Linus-Walleij/regmap-Support-accelerated-noinc-operations/20220816-211403 base: 568035b01cfb107af8d2e4bd2fb9aea22cf5b868 config: hexagon-randconfig-r045-20220815 (https://download.01.org/0day-ci/archive/20220817/202208170316.UKonQfhi-lkp@intel.com/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project aed5e3bea138ce581d682158eb61c27b3cfdd6ec) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/8ab63711dfb48f91d79fff115511f7895ca39180 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Linus-Walleij/regmap-Support-accelerated-noinc-operations/20220816-211403 git checkout 8ab63711dfb48f91d79fff115511f7895ca39180 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/base/regmap/
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> drivers/base/regmap/regmap-mmio.c:212:3: error: call to undeclared function 'writesb'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] writesb(ctx->regs + reg, (const u8 *)val, val_count); ^ drivers/base/regmap/regmap-mmio.c:212:3: note: did you mean 'writeb'? arch/hexagon/include/asm/io.h:122:20: note: 'writeb' declared here static inline void writeb(u8 data, volatile void __iomem *addr) ^ >> drivers/base/regmap/regmap-mmio.c:366:3: error: call to undeclared function 'readsb'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] readsb(ctx->regs + reg, (u8 *)val, val_count); ^ drivers/base/regmap/regmap-mmio.c:366:3: note: did you mean 'readb'? arch/hexagon/include/asm/io.h:83:18: note: 'readb' declared here static inline u8 readb(const volatile void __iomem *addr) ^ 2 errors generated.
vim +/writesb +212 drivers/base/regmap/regmap-mmio.c
163 164 static int regmap_mmio_noinc_write(void *context, unsigned int reg, 165 const void *val, size_t val_count) 166 { 167 struct regmap_mmio_context *ctx = context; 168 int ret = 0; 169 int i; 170 171 if (!IS_ERR(ctx->clk)) { 172 ret = clk_enable(ctx->clk); 173 if (ret < 0) 174 return ret; 175 } 176 177 /* 178 * There are no native, assembly-optimized write single register 179 * operations for big endian, so fall back to emulation if this 180 * is needed. (Single bytes are fine, they are not affected by 181 * endianness.) 182 */ 183 if (ctx->big_endian && (ctx->val_bytes > 1)) { 184 switch (ctx->val_bytes) { 185 case 2: 186 { 187 const u16 *valp = (const u16 *)val; 188 for (i = 0; i < val_count; i++) 189 iowrite16be(valp[i], ctx->regs + reg); 190 break; 191 } 192 case 4: 193 { 194 const u32 *valp = (const u32 *)val; 195 for (i = 0; i < val_count; i++) 196 iowrite32be(valp[i], ctx->regs + reg); 197 break; 198 } 199 #ifdef CONFIG_64BIT 200 case 8: 201 /* This is just too esoteric */ 202 fallthrough; 203 #endif 204 default: 205 ret = -EINVAL; 206 goto out_clk; 207 } 208 } 209 210 switch (ctx->val_bytes) { 211 case 1: > 212 writesb(ctx->regs + reg, (const u8 *)val, val_count); 213 break; 214 case 2: 215 writesw(ctx->regs + reg, (const u16 *)val, val_count); 216 break; 217 case 4: 218 writesl(ctx->regs + reg, (const u32 *)val, val_count); 219 break; 220 #ifdef CONFIG_64BIT 221 case 8: 222 writesq(ctx->regs + reg, (const u64 *)val, val_count); 223 break; 224 #endif 225 default: 226 ret = -EINVAL; 227 break; 228 } 229 230 out_clk: 231 if (!IS_ERR(ctx->clk)) 232 clk_disable(ctx->clk); 233 234 return ret; 235 } 236 237 static unsigned int regmap_mmio_read8(struct regmap_mmio_context *ctx, 238 unsigned int reg) 239 { 240 return readb(ctx->regs + reg); 241 } 242 243 static unsigned int regmap_mmio_read8_relaxed(struct regmap_mmio_context *ctx, 244 unsigned int reg) 245 { 246 return readb_relaxed(ctx->regs + reg); 247 } 248 249 static unsigned int regmap_mmio_read16le(struct regmap_mmio_context *ctx, 250 unsigned int reg) 251 { 252 return readw(ctx->regs + reg); 253 } 254 255 static unsigned int regmap_mmio_read16le_relaxed(struct regmap_mmio_context *ctx, 256 unsigned int reg) 257 { 258 return readw_relaxed(ctx->regs + reg); 259 } 260 261 static unsigned int regmap_mmio_read16be(struct regmap_mmio_context *ctx, 262 unsigned int reg) 263 { 264 return ioread16be(ctx->regs + reg); 265 } 266 267 static unsigned int regmap_mmio_read32le(struct regmap_mmio_context *ctx, 268 unsigned int reg) 269 { 270 return readl(ctx->regs + reg); 271 } 272 273 static unsigned int regmap_mmio_read32le_relaxed(struct regmap_mmio_context *ctx, 274 unsigned int reg) 275 { 276 return readl_relaxed(ctx->regs + reg); 277 } 278 279 static unsigned int regmap_mmio_read32be(struct regmap_mmio_context *ctx, 280 unsigned int reg) 281 { 282 return ioread32be(ctx->regs + reg); 283 } 284 285 #ifdef CONFIG_64BIT 286 static unsigned int regmap_mmio_read64le(struct regmap_mmio_context *ctx, 287 unsigned int reg) 288 { 289 return readq(ctx->regs + reg); 290 } 291 292 static unsigned int regmap_mmio_read64le_relaxed(struct regmap_mmio_context *ctx, 293 unsigned int reg) 294 { 295 return readq_relaxed(ctx->regs + reg); 296 } 297 #endif 298 299 static int regmap_mmio_read(void *context, unsigned int reg, unsigned int *val) 300 { 301 struct regmap_mmio_context *ctx = context; 302 int ret; 303 304 if (!IS_ERR(ctx->clk)) { 305 ret = clk_enable(ctx->clk); 306 if (ret < 0) 307 return ret; 308 } 309 310 *val = ctx->reg_read(ctx, reg); 311 312 if (!IS_ERR(ctx->clk)) 313 clk_disable(ctx->clk); 314 315 return 0; 316 } 317 318 static int regmap_mmio_noinc_read(void *context, unsigned int reg, 319 void *val, size_t val_count) 320 { 321 struct regmap_mmio_context *ctx = context; 322 int ret = 0; 323 int i; 324 325 if (!IS_ERR(ctx->clk)) { 326 ret = clk_enable(ctx->clk); 327 if (ret < 0) 328 return ret; 329 } 330 331 /* 332 * There are no native, assembly-optimized write single register 333 * operations for big endian, so fall back to emulation if this 334 * is needed. (Single bytes are fine, they are not affected by 335 * endianness.) 336 */ 337 if (ctx->big_endian && (ctx->val_bytes > 1)) { 338 switch (ctx->val_bytes) { 339 case 2: 340 { 341 u16 *valp = (u16 *)val; 342 for (i = 0; i < val_count; i++) 343 valp[i] = ioread16be(ctx->regs + reg); 344 break; 345 } 346 case 4: 347 { 348 u32 *valp = (u32 *)val; 349 for (i = 0; i < val_count; i++) 350 valp[i] = ioread32be(ctx->regs + reg); 351 break; 352 } 353 #ifdef CONFIG_64BIT 354 case 8: 355 /* This is just too esoteric */ 356 fallthrough; 357 #endif 358 default: 359 ret = -EINVAL; 360 goto out_clk; 361 } 362 } 363 364 switch (ctx->val_bytes) { 365 case 1: > 366 readsb(ctx->regs + reg, (u8 *)val, val_count); 367 break; 368 case 2: 369 readsw(ctx->regs + reg, (u16 *)val, val_count); 370 break; 371 case 4: 372 readsl(ctx->regs + reg, (u32 *)val, val_count); 373 break; 374 #ifdef CONFIG_64BIT 375 case 8: 376 readsq(ctx->regs + reg, (u64 *)val, val_count); 377 break; 378 #endif 379 default: 380 ret = -EINVAL; 381 break; 382 } 383 384 out_clk: 385 if (!IS_ERR(ctx->clk)) 386 clk_disable(ctx->clk); 387 388 return ret; 389 390 return 0; 391 } 392
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